Production Planner (Temporary)

Semtech•Irvine, CA

6d•Hybrid

About The Position

The Sr. Production Planner is an individual contributor responsible for day-to-day supply planning execution within the SIP Business Unit. This role supports wafer start planning, WIP tracking, pre-triangulation meeting preparation, and cross-functional coordination with PLMs, foundry operations, and OSAT partners. The position works under the direction of the Sr. Manager, Planning and Revenue Management and is expected to operate with a high degree of accuracy and ownership in a fast-paced semiconductor supply chain environment.

Requirements

Bachelor’s degree in Supply Chain Management, Industrial Engineering, or related field
3–5 years of experience in production planning, supply chain, or operations in a manufacturing environment
Working knowledge of SAP ECC/SCM
Experience coordinating with external manufacturing partners (foundry, OSAT) a plus
Solid understanding of production planning principles and supply chain fundamentals
Proficiency in SAP ECC/SCM; familiarity with SAC or equivalent planning tools a plus
Strong attention to detail and ability to manage multiple priorities simultaneously
Clear, organized communication skills with cross-functional teams (PLM, foundry ops, sales ops)
Comfortable working independently in a remote environment with minimal supervision
Familiarity with semiconductor manufacturing concepts (wafer starts, probe, OSAT) preferred
Strong Excel skills required

Nice To Haves

Professional certification (CPIM, CSCP) preferred but not required

Responsibilities

Prepare and distribute weekly wafer start reports (SIP WW report) to planning manager and relevant stakeholders
Coordinate wafer starts across Tower Semiconductor FAB2 and FAB3 in alignment with consensus demand and allocation constraints
Track and maintain WIP material lists by product and lot
Flag material shortages, capacity constraints, or schedule interruptions to planning manager in a timely manner
Support wafer start approval workflows with accurate demand and allocation data
Facilitate pre-triangulation meetings with regional sales teams (Asia, Japan, Korea, ROA) ahead of the weekly triangulation cycle
Pull and review turns-remaining data and delta reports from the triangulation tool to surface demand risk and recovery opportunities
Prepare meeting materials and document action items
Communicate supply constraints and planning assumptions clearly to sales and PLM stakeholders
Escalate discrepancies between backlog, sales forecast, and consensus demand to planning manager
Monitor finished goods and WIP inventory levels by part number against demand and days-of-inventory (DOI) targets
Identify excess, aged, or at-risk inventory and escalate disposition recommendations to planning manager
Support safety stock reviews by product family and flag attainment gaps
Coordinate with OSAT partners (probe, assembly, test) to track WIP lot status and ensure material is moving through the supply chain on schedule
Assist with hold lot tracking and NCMR disposition as directed
Maintain accurate inventory records in SAP ECC/SCM and flag discrepancies for resolution
Maintain accurate planning data in SAP ECC/SCM including material master, backlog, and supply plan records
Support backlog analysis and snapshot comparisons as directed
Run standard planning reports and distribute to stakeholders on schedule
Assist with ad hoc data pulls and supply plan updates as requested by planning manager